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ID: 3754635 pcs
1.94ct Sapphire
4.55 x 4.52 x 2.62mm
USD 57.62
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ID: 4176312 pcs
8.21ct Topaz
9.98 x 9.95 x 6.34mm
USD 57.47
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ID: 4107324 pcs
1.97ct Rhodolite Garnet
5.10 x 5.07 x 2.97mm
USD 15.76
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ID: 3591464 pcs
1.05ct Sapphire
3.98 x 3.94 x 2.08mm
USD 48.91
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ID: 4223021 pcs
1.34ct Apatite
7.87 x 7.49 x 3.81mm
USD 57.27
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ID: 4232162 pcs
1.07ct Rhodolite Garnet
5.20 x 5.05 x 3.10mm
USD 8.56
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ID: 4228991 pcs
1.90ct Golden Beryl
9.11 x 8.86 x 4.31mm
USD 41.80
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ID: 4294245 pcs
1.52ct Topaz
4.25 x 4.19 x 2.62mm
USD 7.60
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ID: 4299181 pcs
0.46ct Topaz
4.94 x 4.85 x 3.01mm
USD 2.30
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ID: 4104964 pcs
1.85ct Rhodolite Garnet
5.08 x 4.95 x 2.91mm
USD 14.80
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ID: 4242016 pcs
2.59ct Rhodolite Garnet
4.93 x 4.86 x 2.66mm
USD 20.72
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ID: 4175511 pcs
3.69ct Topaz
10.05 x 9.91 x 5.62mm
USD 25.83
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ID: 3482401 pcs
53.88ct Jasper
43.25 x 28.61 x 8.50mm
USD 53.88
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ID: 4297364 pcs
1.98ct Topaz
5.23 x 5.05 x 3.22mm
USD 9.90
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ID: 4242725 pcs
2.40ct Rhodolite Garnet
4.97 x 4.95 x 3.04mm
USD 19.20
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ID: 4346111 pcs
30.92ct Ametrine
22.32 x 18.54 x 14.04mm
USD 185.52
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ID: 4234951 pcs
2.25ct Tanzanite
9.21 x 8.88 x 4.22mm
USD 450.00
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ID: 4114022 pcs
1.81ct Tanzanite
6.30 x 6.22 x 3.67mm
USD 126.70
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ID: 3591596 pcs
1.32ct Sapphire
3.75 x 3.70 x 1.98mm
USD 61.49
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ID: 4241906 pcs
2.89ct Rhodolite Garnet
5.05 x 4.97 x 2.77mm
USD 23.12
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ID: 3754755 pcs
1.81ct Sapphire
4.19 x 4.14 x 2.53mm
USD 53.76
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Trillion Shaped Gems
When it comes to gemstones, shape and cut are are often used interchangeably. The reason is because the difference between the two isn't always obvious. Shape refers to the overall outline of a stone, while 'cut' refers the actual style, process or technique used to work the rough into finished gemstone pieces. Historically, a trilliant gem exhibits the basic trilliant design, featuring 43 facets cut into a triangular shape gemstone that has been worked into 1:1 ratio and cut with 43 facets. The 43 facets are based on the 'brilliant-cut' in order to maximize 'brilliance'. Like other brilliant cuts, the equilateral form of a well-cut trilliant gem should return a substantial degree of light and color to the eye. The trillion cutting style was originally introduced by the Asscher brothers (Asscher-cut) and was trademarked in 1962 by Henry Meyer Diamond Company of New York. Since the expiration of their 'trillion' patent, the term can be used to refer to all triangular shaped gems, even those which are not faceted.

Many trillions today are step-cut, scissor-cut, plain-cut, mixed-cut with undulating surfaces, and trillion gemstones are even cut en cabochon, featuring a flat bottom with a low or high dome depending on the type of gem. As long as the gemstone has a face-up outline or shape which resembles a triangle, then it can be described as a trillion-shaped gemstone. Gemstones like zircon, spinel, diamond, aquamarine, beryl and white sapphire are often cut as trillions to maximize brilliance, while darker gemstones such as tanzanite, spessartite garnet, rhodolite garnet and amethyst are given a trilliant cut in order to lighten and brighten color (rather than focusing on brilliance). Since most diamond-cut styles are modified for colored stones, many colored stone dealers use alternative terms that refer to shape rather than cut-style.
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart